Starbucks closing shops

For instance, every time I visit Seattle (their headquarters) I am puzzled on how come Starbucks has nearly half-a-dozen stores in the downtown area around WA State Convention Center. And all of them are within walking distance to one another. In one of the streets for every block, they have a Starbucks store. Naturally, each of their stores will eat into their other stores – if it is carpet bombing strategy against competition, I don’t find it impressive.